also caught on camera, the first family acting like a typical american family, with malia and sasha obama snapping pictures of each other, laughing, and in the finest tradition of children anywhere, egging their parents on. then the inaugural balls. four years ago, there were ten. last night, there were just two. the first lady wore a red gown by designer jason wu to the commander in chief ball, the same designer she wore to the first inaugural. >> ladies and gentlemen, my better half and my dance partner, michelle obama. ♪ i, i'm so in love with you >> jennifer hudson wasn't the only one serenading the president and first lady. you had stevie wonder, john legend, and alicia keys among the other performers last night. here's aleasicia keys with a special version of her hit, "girl on fire." ♪ he's the president and he's on fire ♪ ♪ hotter than a fantasy ♪ obama's on fire ♪ obama's on fire >> nbc's peter alexander is live at the white house now. now, peter, i understand you have a song prepared for us. >> reporter: yeah, no, i was just going to perform for you. actually, i'm gla